73268243
Jun 30, 1980
Dec 3, 1985
COMPUTER GRAPHICS SYSTEMS AND ASSOCIATED DATA PROCESSING EQUIPMENT-NAMELY, GRAPHIC DISPLAY PROCESSORS, MONITORS, KEYBOARDS, INTERFACES IN THE NATURE OF TERMINAL-TO-PROCESSOR INTERCONNECT CIRCUITS, JOYSTICKS IN THE NATURE OF GRAPHIC INPUT DEVICES HAVING A MOVEABLE LEVER FOR CURSOR POSITIONING AND POINTING, DATA TABLETS IN THE NATURE OF FLAT SURFACED GRAPHIC INPUT DEVICES HAVING A WRITING STYLUS OR DIGITIZING PUCK, DIGITIZERS WHEN SOLD AS A UNIT THEREWITH, ELECTROSTATIC PRINTER/PLOTTERS, PEN PLOTTERS, LIGHT PEN AND PUCK MODULES, COMPARATOR MODULES, FLOPPY DISK DECKS, CARD DISK DECKS, MAGNETIC TAPE DECKS WHEN SOLD AS A UNIT THEREWITH, COMPUTERS, MINICOMPUTERS, COMPUTER PROGRAMS FOR COMPUTER GRAPHICS SYSTEMS RECORDED ON TAPES, DISKS AND CARDS, REFRESH TERMINALS AND INTELLIGENT TERMINALS
Electrical and Scientific Apparatus